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Table 1.

Metabolic cost of exoskeleton walking

Unpowered
Powered
MetricBeginningEndBeginningEndCondition P value; THSD
Session 1 Net metabolic power (W kg–13.58±0.10 3.52±0.10 3.84±0.30 3.57±0.31 P=0.33 
Session 2 Net metabolic power (W kg–13.40±0.10 3.39±0.08 3.64±0.33 3.23±0.18 P=0.81 
Session 3 Net metabolic power (W kg–13.31±0.11 3.25±0.10 3.22±0.20 2.99±0.17 P=0.03* Powered < Unpowered 
Unpowered
Powered
MetricBeginningEndBeginningEndCondition P value; THSD
Session 1 Net metabolic power (W kg–13.58±0.10 3.52±0.10 3.84±0.30 3.57±0.31 P=0.33 
Session 2 Net metabolic power (W kg–13.40±0.10 3.39±0.08 3.64±0.33 3.23±0.18 P=0.81 
Session 3 Net metabolic power (W kg–13.31±0.11 3.25±0.10 3.22±0.20 2.99±0.17 P=0.03* Powered < Unpowered 

Net metabolic power data (W kg–1) are means ±s.e.m., N=9. See Materials and methods for calculations

Statistics: THSD, Tukey honestly significant difference test results;Condition, Powered/Unpowered; P<0.05 indicates statistical significance; *statistical power >0.65

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